chore: remove legacy ticketflow spec, build logs, and agent prompts

docs: add demo video to README

docs: rewrite README with personality-driven style and comprehensive feature docs

fix: make release step idempotent and fix asset upload

fix: skip Tauri built-in DMG bundler in release workflow

feat: resume agent panel conversations across sessions

feat: show pushed indicator on sidebar work item cards

feat: replace tauri-action with deterministic macOS signing pipeline

fix: allow pushing new uncommitted changes after initial push

feat: per-workspace git identity for commits

fix: macOS notarization stalling and migration race condition

feat: add macOS code signing, agent log events, and UI improvements

fix: let pnpm version resolve from packageManager field

feat: open-source release preparation

feat: add orchestrator analyze-and-plan action with conversation history